libavcodec/libamr.c

   1 /*
   2  * AMR Audio decoder stub
   3  * Copyright (c) 2003 the ffmpeg project
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22  /** @file
  23  * Adaptive Multi-Rate (AMR) Audio decoder stub.
  24  *
  25  * This code implements both an AMR-NarrowBand (AMR-NB) and an AMR-WideBand
  26  * (AMR-WB) audio encoder/decoder through external reference code from
  27  * http://www.3gpp.org/. The license of the code from 3gpp is unclear so you
  28  * have to download the code separately. Two versions exists: One fixed-point
  29  * and one floating-point. For some reason the float encoder is significantly
  30  * faster at least on a P4 1.5GHz (0.9s instead of 9.9s on a 30s audio clip
  31  * at MR102). Both float and fixed point are supported for AMR-NB, but only
  32  * float for AMR-WB.
  33  *
  34  * \section AMR-NB
  35  *
  36  * \subsection Float
  37  * The float version (default) can be downloaded from:
  38  * http://www.3gpp.org/ftp/Specs/archive/26_series/26.104/26104-610.zip
  39  *
  40  * \subsection Fixed-point
  41  * The fixed-point (TS26.073) can be downloaded from:
  42  * http://www.3gpp.org/ftp/Specs/archive/26_series/26.073/26073-600.zip
  43  *
  44  * \subsection Specification
  45  * The specification for AMR-NB can be found in TS 26.071
  46  * (http://www.3gpp.org/ftp/Specs/html-info/26071.htm) and some other
  47  * info at http://www.3gpp.org/ftp/Specs/html-info/26-series.htm.
  48  *
  49  * \section AMR-WB
  50  *
  51  * \subsection Float
  52  * The reference code can be downloaded from:
  53  * http://www.3gpp.org/ftp/Specs/archive/26_series/26.204/26204-600.zip
  54  *
  55  * \subsection Fixed-point
  56  * If someone wants to use the fixed point version it can be downloaded from:
  57  * http://www.3gpp.org/ftp/Specs/archive/26_series/26.173/26173-571.zip.
  58  *
  59  * \subsection Specification
  60  * The specification for AMR-WB can be found in TS 26.171
  61  * (http://www.3gpp.org/ftp/Specs/html-info/26171.htm) and some other
  62  * info at http://www.3gpp.org/ftp/Specs/html-info/26-series.htm.
  63  *
  64  */
  65
  66 #include "avcodec.h"
  67
  68 #ifdef CONFIG_LIBAMR_NB_FIXED
  69
  70 #define MMS_IO
  71
  72 #include "amr/sp_dec.h"
  73 #include "amr/d_homing.h"
  74 #include "amr/typedef.h"
  75 #include "amr/sp_enc.h"
  76 #include "amr/sid_sync.h"
  77 #include "amr/e_homing.h"
  78
  79 #else
  80 #include <amrnb/interf_dec.h>
  81 #include <amrnb/interf_enc.h>
  82 #endif
  83
  84 static const char *nb_bitrate_unsupported =
  85     "bitrate not supported: use one of 4.75k, 5.15k, 5.9k, 6.7k, 7.4k, 7.95k, 10.2k or 12.2k\n";
  86 static const char *wb_bitrate_unsupported =
  87     "bitrate not supported: use one of 6.6k, 8.85k, 12.65k, 14.25k, 15.85k, 18.25k, 19.85k, 23.05k, or 23.85k\n";
  88
  89 /* Common code for fixed and float version*/
  90 typedef struct AMR_bitrates
  91 {
  92     int rate;
  93     enum Mode mode;
  94 } AMR_bitrates;
  95
  96 /* Match desired bitrate */
  97 static int getBitrateMode(int bitrate)
  98 {
  99     /* make the correspondance between bitrate and mode */
 100     AMR_bitrates rates[]={ {4750,MR475},
 101                            {5150,MR515},
 102                            {5900,MR59},
 103                            {6700,MR67},
 104                            {7400,MR74},
 105                            {7950,MR795},
 106                            {10200,MR102},
 107                            {12200,MR122},
 108                          };
 109     int i;
 110
 111     for(i=0;i<8;i++)
 112     {
 113         if(rates[i].rate==bitrate)
 114         {
 115             return rates[i].mode;
 116         }
 117     }
 118     /* no bitrate matching, return an error */
 119     return -1;
 120 }
 121
 122 static void amr_decode_fix_avctx(AVCodecContext * avctx)
 123 {
 124     const int is_amr_wb = 1 + (avctx->codec_id == CODEC_ID_AMR_WB);
 125
 126     if(avctx->sample_rate == 0)
 127     {
 128         avctx->sample_rate = 8000 * is_amr_wb;
 129     }
 130
 131     if(avctx->channels == 0)
 132     {
 133         avctx->channels = 1;
 134     }
 135
 136     avctx->frame_size = 160 * is_amr_wb;
 137 }
 138
 139 #ifdef CONFIG_LIBAMR_NB_FIXED
 140 /* fixed point version*/
 141 /* frame size in serial bitstream file (frame type + serial stream + flags) */
 142 #define SERIAL_FRAMESIZE (1+MAX_SERIAL_SIZE+5)
 143
 144 typedef struct AMRContext {
 145     int frameCount;
 146     Speech_Decode_FrameState *speech_decoder_state;
 147     enum RXFrameType rx_type;
 148     enum Mode mode;
 149     Word16 reset_flag;
 150     Word16 reset_flag_old;
 151
 152     int enc_bitrate;
 153     Speech_Encode_FrameState *enstate;
 154     sid_syncState *sidstate;
 155     enum TXFrameType tx_frametype;
 156 } AMRContext;
 157
 158 static int amr_nb_decode_init(AVCodecContext * avctx)
 159 {
 160     AMRContext *s = avctx->priv_data;
 161
 162     s->frameCount=0;
 163     s->speech_decoder_state=NULL;
 164     s->rx_type = (enum RXFrameType)0;
 165     s->mode= (enum Mode)0;
 166     s->reset_flag=0;
 167     s->reset_flag_old=1;
 168
 169     if(Speech_Decode_Frame_init(&s->speech_decoder_state, "Decoder"))
 170     {
 171         av_log(avctx, AV_LOG_ERROR, "Speech_Decode_Frame_init error\n");
 172         return -1;
 173     }
 174
 175     amr_decode_fix_avctx(avctx);
 176
 177     if(avctx->channels > 1)
 178     {
 179         av_log(avctx, AV_LOG_ERROR, "amr_nb: multichannel decoding not supported\n");
 180         return -1;
 181     }
 182
 183     return 0;
 184 }
 185
 186 static int amr_nb_encode_init(AVCodecContext * avctx)
 187 {
 188     AMRContext *s = avctx->priv_data;
 189
 190     s->frameCount=0;
 191     s->speech_decoder_state=NULL;
 192     s->rx_type = (enum RXFrameType)0;
 193     s->mode= (enum Mode)0;
 194     s->reset_flag=0;
 195     s->reset_flag_old=1;
 196
 197     if(avctx->sample_rate!=8000)
 198     {
 199         av_log(avctx, AV_LOG_ERROR, "Only 8000Hz sample rate supported\n");
 200         return -1;
 201     }
 202
 203     if(avctx->channels!=1)
 204     {
 205         av_log(avctx, AV_LOG_ERROR, "Only mono supported\n");
 206         return -1;
 207     }
 208
 209     avctx->frame_size=160;
 210     avctx->coded_frame= avcodec_alloc_frame();
 211
 212     if(Speech_Encode_Frame_init(&s->enstate, 0, "encoder") || sid_sync_init (&s->sidstate))
 213     {
 214         av_log(avctx, AV_LOG_ERROR, "Speech_Encode_Frame_init error\n");
 215         return -1;
 216     }
 217
 218     if((s->enc_bitrate=getBitrateMode(avctx->bit_rate))<0)
 219     {
 220         av_log(avctx, AV_LOG_ERROR, nb_bitrate_unsupported);
 221         return -1;
 222     }
 223
 224     return 0;
 225 }
 226
 227 static int amr_nb_encode_close(AVCodecContext * avctx)
 228 {
 229     AMRContext *s = avctx->priv_data;
 230
 231     Speech_Encode_Frame_exit(&s->enstate);
 232     sid_sync_exit (&s->sidstate);
 233     av_freep(&avctx->coded_frame);
 234     return 0;
 235 }
 236
 237 static int amr_nb_decode_close(AVCodecContext * avctx)
 238 {
 239     AMRContext *s = avctx->priv_data;
 240
 241     Speech_Decode_Frame_exit(&s->speech_decoder_state);
 242     return 0;
 243 }
 244
 245 static int amr_nb_decode_frame(AVCodecContext * avctx,
 246             void *data, int *data_size,
 247             uint8_t * buf, int buf_size)
 248 {
 249     AMRContext *s = avctx->priv_data;
 250     uint8_t*amrData=buf;
 251     int offset=0;
 252     UWord8 toc, q, ft;
 253     Word16 serial[SERIAL_FRAMESIZE];   /* coded bits */
 254     Word16 *synth;
 255     UWord8 *packed_bits;
 256     static Word16 packed_size[16] = {12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0};
 257     int i;
 258
 259     //printf("amr_decode_frame data_size=%i buf=0x%X buf_size=%d frameCount=%d!!\n",*data_size,buf,buf_size,s->frameCount);
 260
 261     synth=data;
 262
 263     toc=amrData[offset];
 264     /* read rest of the frame based on ToC byte */
 265     q  = (toc >> 2) & 0x01;
 266     ft = (toc >> 3) & 0x0F;
 267
 268     //printf("offset=%d, packet_size=%d amrData= 0x%X %X %X %X\n",offset,packed_size[ft],amrData[offset],amrData[offset+1],amrData[offset+2],amrData[offset+3]);
 269
 270     offset++;
 271
 272     packed_bits=amrData+offset;
 273
 274     offset+=packed_size[ft];
 275
 276     //Unsort and unpack bits
 277     s->rx_type = UnpackBits(q, ft, packed_bits, &s->mode, &serial[1]);
 278
 279     //We have a new frame
 280     s->frameCount++;
 281
 282     if (s->rx_type == RX_NO_DATA)
 283     {
 284         s->mode = s->speech_decoder_state->prev_mode;
 285     }
 286     else {
 287         s->speech_decoder_state->prev_mode = s->mode;
 288     }
 289
 290     /* if homed: check if this frame is another homing frame */
 291     if (s->reset_flag_old == 1)
 292     {
 293         /* only check until end of first subframe */
 294         s->reset_flag = decoder_homing_frame_test_first(&serial[1], s->mode);
 295     }
 296     /* produce encoder homing frame if homed & input=decoder homing frame */
 297     if ((s->reset_flag != 0) && (s->reset_flag_old != 0))
 298     {
 299         for (i = 0; i < L_FRAME; i++)
 300         {
 301             synth[i] = EHF_MASK;
 302         }
 303     }
 304     else
 305     {
 306         /* decode frame */
 307         Speech_Decode_Frame(s->speech_decoder_state, s->mode, &serial[1], s->rx_type, synth);
 308     }
 309
 310     //Each AMR-frame results in 160 16-bit samples
 311     *data_size=160*2;
 312
 313     /* if not homed: check whether current frame is a homing frame */
 314     if (s->reset_flag_old == 0)
 315     {
 316         /* check whole frame */
 317         s->reset_flag = decoder_homing_frame_test(&serial[1], s->mode);
 318     }
 319     /* reset decoder if current frame is a homing frame */
 320     if (s->reset_flag != 0)
 321     {
 322         Speech_Decode_Frame_reset(s->speech_decoder_state);
 323     }
 324     s->reset_flag_old = s->reset_flag;
 325
 326     return offset;
 327 }
 328
 329
 330 static int amr_nb_encode_frame(AVCodecContext *avctx,
 331                             unsigned char *frame/*out*/, int buf_size, void *data/*in*/)
 332 {
 333     short serial_data[250] = {0};
 334     AMRContext *s = avctx->priv_data;
 335     int written;
 336
 337     s->reset_flag = encoder_homing_frame_test(data);
 338
 339     Speech_Encode_Frame(s->enstate, s->enc_bitrate, data, &serial_data[1], &s->mode);
 340
 341     /* add frame type and mode */
 342     sid_sync (s->sidstate, s->mode, &s->tx_frametype);
 343
 344     written = PackBits(s->mode, s->enc_bitrate, s->tx_frametype, &serial_data[1], frame);
 345
 346     if (s->reset_flag != 0)
 347     {
 348         Speech_Encode_Frame_reset(s->enstate);
 349         sid_sync_reset(s->sidstate);
 350     }
 351     return written;
 352 }
 353
 354
 355 #elif defined(CONFIG_LIBAMR_NB) /* Float point version*/
 356
 357 typedef struct AMRContext {
 358     int frameCount;
 359     void * decState;
 360     int *enstate;
 361     int enc_bitrate;
 362 } AMRContext;
 363
 364 static int amr_nb_decode_init(AVCodecContext * avctx)
 365 {
 366     AMRContext *s = avctx->priv_data;
 367
 368     s->frameCount=0;
 369     s->decState=Decoder_Interface_init();
 370     if(!s->decState)
 371     {
 372         av_log(avctx, AV_LOG_ERROR, "Decoder_Interface_init error\r\n");
 373         return -1;
 374     }
 375
 376     amr_decode_fix_avctx(avctx);
 377
 378     if(avctx->channels > 1)
 379     {
 380         av_log(avctx, AV_LOG_ERROR, "amr_nb: multichannel decoding not supported\n");
 381         return -1;
 382     }
 383
 384     return 0;
 385 }
 386
 387 static int amr_nb_encode_init(AVCodecContext * avctx)
 388 {
 389     AMRContext *s = avctx->priv_data;
 390
 391     s->frameCount=0;
 392
 393     if(avctx->sample_rate!=8000)
 394     {
 395         av_log(avctx, AV_LOG_ERROR, "Only 8000Hz sample rate supported\n");
 396         return -1;
 397     }
 398
 399     if(avctx->channels!=1)
 400     {
 401         av_log(avctx, AV_LOG_ERROR, "Only mono supported\n");
 402         return -1;
 403     }
 404
 405     avctx->frame_size=160;
 406     avctx->coded_frame= avcodec_alloc_frame();
 407
 408     s->enstate=Encoder_Interface_init(0);
 409     if(!s->enstate)
 410     {
 411         av_log(avctx, AV_LOG_ERROR, "Encoder_Interface_init error\n");
 412         return -1;
 413     }
 414
 415     if((s->enc_bitrate=getBitrateMode(avctx->bit_rate))<0)
 416     {
 417         av_log(avctx, AV_LOG_ERROR, nb_bitrate_unsupported);
 418         return -1;
 419     }
 420
 421     return 0;
 422 }
 423
 424 static int amr_nb_decode_close(AVCodecContext * avctx)
 425 {
 426     AMRContext *s = avctx->priv_data;
 427
 428     Decoder_Interface_exit(s->decState);
 429     return 0;
 430 }
 431
 432 static int amr_nb_encode_close(AVCodecContext * avctx)
 433 {
 434     AMRContext *s = avctx->priv_data;
 435
 436     Encoder_Interface_exit(s->enstate);
 437     av_freep(&avctx->coded_frame);
 438     return 0;
 439 }
 440
 441 static int amr_nb_decode_frame(AVCodecContext * avctx,
 442             void *data, int *data_size,
 443             uint8_t * buf, int buf_size)
 444 {
 445     AMRContext *s = avctx->priv_data;
 446     uint8_t*amrData=buf;
 447     static const uint8_t block_size[16]={ 12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0 };
 448     enum Mode dec_mode;
 449     int packet_size;
 450
 451     /* av_log(NULL,AV_LOG_DEBUG,"amr_decode_frame buf=%p buf_size=%d frameCount=%d!!\n",buf,buf_size,s->frameCount); */
 452
 453     dec_mode = (buf[0] >> 3) & 0x000F;
 454     packet_size = block_size[dec_mode]+1;
 455
 456     if(packet_size > buf_size) {
 457         av_log(avctx, AV_LOG_ERROR, "amr frame too short (%u, should be %u)\n", buf_size, packet_size);
 458         return -1;
 459     }
 460
 461     s->frameCount++;
 462     /* av_log(NULL,AV_LOG_DEBUG,"packet_size=%d amrData= 0x%X %X %X %X\n",packet_size,amrData[0],amrData[1],amrData[2],amrData[3]); */
 463     /* call decoder */
 464     Decoder_Interface_Decode(s->decState, amrData, data, 0);
 465     *data_size=160*2;
 466
 467     return packet_size;
 468 }
 469
 470 static int amr_nb_encode_frame(AVCodecContext *avctx,
 471                             unsigned char *frame/*out*/, int buf_size, void *data/*in*/)
 472 {
 473     AMRContext *s = avctx->priv_data;
 474     int written;
 475
 476     if((s->enc_bitrate=getBitrateMode(avctx->bit_rate))<0)
 477     {
 478         av_log(avctx, AV_LOG_ERROR, nb_bitrate_unsupported);
 479         return -1;
 480     }
 481
 482     written = Encoder_Interface_Encode(s->enstate,
 483         s->enc_bitrate,
 484         data,
 485         frame,
 486         0);
 487     /* av_log(NULL,AV_LOG_DEBUG,"amr_nb_encode_frame encoded %u bytes, bitrate %u, first byte was %#02x\n",written, s->enc_bitrate, frame[0] ); */
 488
 489     return written;
 490 }
 491
 492 #endif
 493
 494 #if defined(CONFIG_LIBAMR_NB) || defined(CONFIG_LIBAMR_NB_FIXED)
 495
 496 AVCodec libamr_nb_decoder =
 497 {
 498     "libamr_nb",
 499     CODEC_TYPE_AUDIO,
 500     CODEC_ID_AMR_NB,
 501     sizeof(AMRContext),
 502     amr_nb_decode_init,
 503     NULL,
 504     amr_nb_decode_close,
 505     amr_nb_decode_frame,
 506     .long_name = NULL_IF_CONFIG_SMALL("libamr-nb Adaptive Multi-Rate (AMR) Narrow-Band"),
 507 };
 508
 509 AVCodec libamr_nb_encoder =
 510 {
 511     "libamr_nb",
 512     CODEC_TYPE_AUDIO,
 513     CODEC_ID_AMR_NB,
 514     sizeof(AMRContext),
 515     amr_nb_encode_init,
 516     amr_nb_encode_frame,
 517     amr_nb_encode_close,
 518     NULL,
 519     .long_name = NULL_IF_CONFIG_SMALL("libamr-nb Adaptive Multi-Rate (AMR) Narrow-Band"),
 520 };
 521
 522 #endif
 523
 524 /* -----------AMR wideband ------------*/
 525 #ifdef CONFIG_LIBAMR_WB
 526
 527 #ifdef _TYPEDEF_H
 528 //To avoid duplicate typedefs from typedef in amr-nb
 529 #define typedef_h
 530 #endif
 531
 532 #include <amrwb/enc_if.h>
 533 #include <amrwb/dec_if.h>
 534 #include <amrwb/if_rom.h>
 535
 536 /* Common code for fixed and float version*/
 537 typedef struct AMRWB_bitrates
 538 {
 539     int rate;
 540     int mode;
 541 } AMRWB_bitrates;
 542
 543 static int getWBBitrateMode(int bitrate)
 544 {
 545     /* make the correspondance between bitrate and mode */
 546     AMRWB_bitrates rates[]={ {6600,0},
 547                            {8850,1},
 548                            {12650,2},
 549                            {14250,3},
 550                            {15850,4},
 551                            {18250,5},
 552                            {19850,6},
 553                            {23050,7},
 554                            {23850,8},
 555                          };
 556     int i;
 557
 558     for(i=0;i<9;i++)
 559     {
 560         if(rates[i].rate==bitrate)
 561         {
 562             return rates[i].mode;
 563         }
 564     }
 565     /* no bitrate matching, return an error */
 566     return -1;
 567 }
 568
 569
 570 typedef struct AMRWBContext {
 571     int frameCount;
 572     void *state;
 573     int mode;
 574     Word16 allow_dtx;
 575 } AMRWBContext;
 576
 577 static int amr_wb_encode_init(AVCodecContext * avctx)
 578 {
 579     AMRWBContext *s = avctx->priv_data;
 580
 581     s->frameCount=0;
 582
 583     if(avctx->sample_rate!=16000)
 584     {
 585         av_log(avctx, AV_LOG_ERROR, "Only 16000Hz sample rate supported\n");
 586         return -1;
 587     }
 588
 589     if(avctx->channels!=1)
 590     {
 591         av_log(avctx, AV_LOG_ERROR, "Only mono supported\n");
 592         return -1;
 593     }
 594
 595     if((s->mode=getWBBitrateMode(avctx->bit_rate))<0)
 596     {
 597         av_log(avctx, AV_LOG_ERROR, wb_bitrate_unsupported);
 598         return -1;
 599     }
 600
 601     avctx->frame_size=320;
 602     avctx->coded_frame= avcodec_alloc_frame();
 603
 604     s->state = E_IF_init();
 605     s->allow_dtx=0;
 606
 607     return 0;
 608 }
 609
 610 static int amr_wb_encode_close(AVCodecContext * avctx)
 611 {
 612     AMRWBContext *s = avctx->priv_data;
 613
 614     E_IF_exit(s->state);
 615     av_freep(&avctx->coded_frame);
 616     s->frameCount++;
 617     return 0;
 618 }
 619
 620 static int amr_wb_encode_frame(AVCodecContext *avctx,
 621                             unsigned char *frame/*out*/, int buf_size, void *data/*in*/)
 622 {
 623     AMRWBContext *s = avctx->priv_data;
 624     int size;
 625
 626     if((s->mode=getWBBitrateMode(avctx->bit_rate))<0)
 627     {
 628         av_log(avctx, AV_LOG_ERROR, wb_bitrate_unsupported);
 629         return -1;
 630     }
 631     size = E_IF_encode(s->state, s->mode, data, frame, s->allow_dtx);
 632     return size;
 633 }
 634
 635 static int amr_wb_decode_init(AVCodecContext * avctx)
 636 {
 637     AMRWBContext *s = avctx->priv_data;
 638
 639     s->frameCount=0;
 640     s->state = D_IF_init();
 641
 642     amr_decode_fix_avctx(avctx);
 643
 644     if(avctx->channels > 1)
 645     {
 646         av_log(avctx, AV_LOG_ERROR, "amr_wb: multichannel decoding not supported\n");
 647         return -1;
 648     }
 649
 650     return 0;
 651 }
 652
 653 static int amr_wb_decode_frame(AVCodecContext * avctx,
 654             void *data, int *data_size,
 655             uint8_t * buf, int buf_size)
 656 {
 657     AMRWBContext *s = avctx->priv_data;
 658     uint8_t*amrData=buf;
 659     int mode;
 660     int packet_size;
 661     static const uint8_t block_size[16] = {18, 23, 33, 37, 41, 47, 51, 59, 61, 6, 6, 0, 0, 0, 1, 1};
 662
 663     if(buf_size==0) {
 664         /* nothing to do */
 665         return 0;
 666     }
 667
 668     mode = (amrData[0] >> 3) & 0x000F;
 669     packet_size = block_size[mode];
 670
 671     if(packet_size > buf_size) {
 672         av_log(avctx, AV_LOG_ERROR, "amr frame too short (%u, should be %u)\n", buf_size, packet_size+1);
 673         return -1;
 674     }
 675
 676     s->frameCount++;
 677     D_IF_decode( s->state, amrData, data, _good_frame);
 678     *data_size=320*2;
 679     return packet_size;
 680 }
 681
 682 static int amr_wb_decode_close(AVCodecContext * avctx)
 683 {
 684     AMRWBContext *s = avctx->priv_data;
 685
 686     D_IF_exit(s->state);
 687     return 0;
 688 }
 689
 690 AVCodec libamr_wb_decoder =
 691 {
 692     "libamr_wb",
 693     CODEC_TYPE_AUDIO,
 694     CODEC_ID_AMR_WB,
 695     sizeof(AMRWBContext),
 696     amr_wb_decode_init,
 697     NULL,
 698     amr_wb_decode_close,
 699     amr_wb_decode_frame,
 700     .long_name = NULL_IF_CONFIG_SMALL("libamr-wb Adaptive Multi-Rate (AMR) Wide-Band"),
 701 };
 702
 703 AVCodec libamr_wb_encoder =
 704 {
 705     "libamr_wb",
 706     CODEC_TYPE_AUDIO,
 707     CODEC_ID_AMR_WB,
 708     sizeof(AMRWBContext),
 709     amr_wb_encode_init,
 710     amr_wb_encode_frame,
 711     amr_wb_encode_close,
 712     NULL,
 713     .long_name = NULL_IF_CONFIG_SMALL("libamr-wb Adaptive Multi-Rate (AMR) Wide-Band"),
 714 };
 715
 716 #endif //CONFIG_LIBAMR_WB